

                                                                  result-of


    FUNCTION
RESULT-OF GATHERER                                               [Function]

    Package
    series

    DESCRIPTION

RESULT-OF retrieves the net result from a gatherer.  RESULT-OF can be
applied at any time.  However, it is an error to apply RESULT-OF twice to
the same gatherer or to apply NEXT-OUT to a gatherer once RESULT-OF has
been applied.

(LET ((G (GATHERER #'COLLECT-SUM))) 
  (DOLIST (I '(1 2 3 4)) 
    (NEXT-OUT G I) 
    (IF (EVENP I) (NEXT-OUT G (* 10 I)))) 
  (RESULT-OF G)) 
 => 70


     SEE ALSO
     about-series
     about-generators

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